bond0: option active_slave: mode dependency failed, not supported in mode balance-rr(0) general protection fault, probably for non-canonical address 0xdffffc0000000200: 0000 [#1] PREEMPT SMP KASAN KASAN: probably user-memory-access in range [0x0000000000001000-0x0000000000001007] CPU: 1 PID: 9438 Comm: syz.2.1353 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:dvb_device_open+0xd9/0x360 drivers/media/dvb-core/dvbdev.c:103 Code: 4c 89 e5 48 c1 ed 03 80 7c 1d 00 00 74 08 4c 89 e7 e8 cb 91 09 fb 4d 8b 2c 24 4d 85 ed 0f 84 08 01 00 00 4c 89 e8 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 ef e8 a9 91 09 fb 49 8b 7d 00 e8 d0 64 a5 RSP: 0018:ffffc9000573f7f0 EFLAGS: 00010206 RAX: 0000000000000200 RBX: dffffc0000000000 RCX: 0000000000000000 RDX: 0000000000000001 RSI: 0000000000000008 RDI: 00000000ffffffff RBP: 1ffff11028966803 R08: ffffffff8d8c1b8f R09: 1ffffffff1b18371 R10: dffffc0000000000 R11: fffffbfff1b18372 R12: ffff888144b34018 R13: 0000000000001000 R14: ffff888029d6d350 R15: ffff888144b34000 FS: 00007f13a54586c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c443f4a CR3: 0000000079d09000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: chrdev_open+0x585/0x5f0 fs/char_dev.c:414 do_dentry_open+0x7dd/0x10b0 fs/open.c:882 do_open fs/namei.c:3634 [inline] path_openat+0x2674/0x2f10 fs/namei.c:3791 do_filp_open+0x1ee/0x420 fs/namei.c:3818 do_sys_openat2+0x14b/0x4f0 fs/open.c:1320 do_sys_open fs/open.c:1336 [inline] __do_sys_openat fs/open.c:1352 [inline] __se_sys_openat fs/open.c:1347 [inline] __x64_sys_openat+0x135/0x160 fs/open.c:1347 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f13a455e90e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007f13a5457b28 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f13a54586c0 RCX: 00007f13a455e90e RDX: 0000000000000002 RSI: 00007f13a5457c00 RDI: ffffffffffffff9c RBP: 00007f13a5457c00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: cccccccccccccccd R13: 00007f13a4826038 R14: 00007f13a4825fa0 R15: 00007ffe81e3c468 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:dvb_device_open+0xd9/0x360 drivers/media/dvb-core/dvbdev.c:103 Code: 4c 89 e5 48 c1 ed 03 80 7c 1d 00 00 74 08 4c 89 e7 e8 cb 91 09 fb 4d 8b 2c 24 4d 85 ed 0f 84 08 01 00 00 4c 89 e8 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 ef e8 a9 91 09 fb 49 8b 7d 00 e8 d0 64 a5 RSP: 0018:ffffc9000573f7f0 EFLAGS: 00010206 RAX: 0000000000000200 RBX: dffffc0000000000 RCX: 0000000000000000 RDX: 0000000000000001 RSI: 0000000000000008 RDI: 00000000ffffffff RBP: 1ffff11028966803 R08: ffffffff8d8c1b8f R09: 1ffffffff1b18371 R10: dffffc0000000000 R11: fffffbfff1b18372 R12: ffff888144b34018 R13: 0000000000001000 R14: ffff888029d6d350 R15: ffff888144b34000 FS: 00007f13a54586c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c443f4a CR3: 0000000079d09000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 4c 89 e5 mov %r12,%rbp 3: 48 c1 ed 03 shr $0x3,%rbp 7: 80 7c 1d 00 00 cmpb $0x0,0x0(%rbp,%rbx,1) c: 74 08 je 0x16 e: 4c 89 e7 mov %r12,%rdi 11: e8 cb 91 09 fb call 0xfb0991e1 16: 4d 8b 2c 24 mov (%r12),%r13 1a: 4d 85 ed test %r13,%r13 1d: 0f 84 08 01 00 00 je 0x12b 23: 4c 89 e8 mov %r13,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 80 3c 18 00 cmpb $0x0,(%rax,%rbx,1) <-- trapping instruction 2e: 74 08 je 0x38 30: 4c 89 ef mov %r13,%rdi 33: e8 a9 91 09 fb call 0xfb0991e1 38: 49 8b 7d 00 mov 0x0(%r13),%rdi 3c: e8 .byte 0xe8 3d: d0 .byte 0xd0 3e: 64 a5 movsl %fs:(%rsi),%es:(%rdi)